Home / 2,183.16-3,012.66-1,188.36

Finding the Fourth Proportional to 2,183.16, 3,012.66 and 1,188.36

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Solution

The fourth proportional to 2,183.16, 3,012.66 and 1,188.36 is: 1,639.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,183.16 : 3,012.66 = 1,188.36 : x
  2. Step 2: Convert to fraction form
    2,183.16/3,012.66 = 1,188.36/x
  3. Step 3: Cross multiply
    2,183.16x = 3,012.66 × 1,188.36
  4. Step 4: Simplify right side
    2,183.16x = 3,580,124.64
  5. Step 5: Solve for x
    x = 3,580,124.64/2,183.16
  6. Step 6: Final answer
    x = 1,639.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.